Car-axle



(No Mode 1.)

J. H. EATON.

GAR AXLE.

No. 379,638. Patented Mar. 20, 1888.

R j as v.

% 6 M M W (eggs.

UNITED STATES PATENT ()FFICFEQ JAMES H. EATON, OF LAWRENCE,MASSACHUSETTS.

CAR-AXLE.

SPECIFICATION forming part of Letters Patent No. 379,638, dated March20, 1888.

Application filed October 21, 1887. Serial No. 252,982.

To aZZ whom it may concern:

Be it known that I, JAMES H. EATON, of Lawrence, county of Essex, andState of Massachusetts, have invented an Improvement in Oar-Axles, ofwhich the following description, in connection with the accompanyingdrawing, is a specification, like letters on the draw ing representinglike parts.

This invention is an improvement upon that class of car-axle representedin United States Patent No. 305,370, dated September 16, 1884, theobject being to prevent the en trance of dust and water into theoil-chamber in the truss, which forms bearings for the inner ends of thedivided axle, to which the wheels are secured.

In accordance with this invention the bearing-surfaces of the trusstravel upon metallic bearing-shells which are shrunk upon and therebyfixed to the divided axle, the fit between the bearing-shells and thedivided axle being water, oil, and dust tight. In the patent referred tothe upper ends of the truss were fitted to and made to embrace the innerends of the hubs of the wheels; but herein the divided axles areprovided with shoulders back of their journals, against which shouldersthe hub of the wheel may be pushed when the wheel is forced upon andsecured to the axle, if desired.

My invention consists, essentially, in the combination, with abearing-truss and a divided axle, of bearingshells shrunk upon andfitting the divided axle water, oil, and dust tight.

The drawing, in longitndinalsection, shows a truss and wheels applied toa divided axle, the latter being in elevation.

The divided axle is composed of two like parts, A, the inner ends ofwhich are grooved to form flanges, and the said ends are joined togetherby a sectional collar, as in the said patent.

The truss is composed of two parts, G O,

- having flanges at their abutting ends, which are joined together bybolts a, a packing being used at a, if desired, said packing being ofany usual construction.

The wheels B, of usual shape and material,

(No model.)

are forced in usual manner upon the arm of the axle or back to ashoulder, as (E, thus leaving a portion of the axle exposed between theinner side of the hub and the end of the truss portions, so that waterstriking the axle may readily run off the same.

Each axle is shouldered, as at Z), and at its shouldered part each halfof the divided axle has shrunk upon it a bearing-shell, as b, the samebeing made in two parts, and so, also, the divided axle has shrunk uponit near its inner end other bearing-shells, as 0, the said shells beingof metal. By shrinking these bearing-shells upon the axle the fitbetween the shells and axle is made water, oil, and dust tight, and yetwhen the bearing-shell becomes worn externally by reason of frictionbetween it and the inner bearingsurface of the truss portions, then thebearing-shells may be struck by a hammer and forced or rounded off fromthe axle and other bearing-shells be substituted.

The bearing-shells b have at their outer ends flanges, as 3, which entera recess or chamber formed in the end of the truss, the junction, as 5,of the periphery of the flange of the bearing-shell with the metal ofthe truss being somewhat distant from the exposed portion 6 of thedivided axle between the wheel and end of the truss, so that water-suchas rain or snow-falling upon the axle cannot work into the truss, or sothat dust cannot work into the truss and into the oilchamber 8 therein.

The space between the rear side of the flange of the bearing-shell b andthe upright shoulder formed in the end of the truss O is closed by meansof a suitable packing, as 10, it adding to the water and dust proofclosing of the joint or space 5.

I claim 1. The combination, with a truss, as C, recessed at its outerends, and a divided axle having shoulders, as b, of bearing-shellsshrunk or secured water, oil, and dust tight to the axle and against thesaid shoulders, and serving as a surface about which rotates the innerbearing-surface of the truss, substantially as described.

2. The divided axle, the shouldered hear ing-shell secured thereto andmade to rotate In testimony whereof Ihave signed my name in unison withthe axle, combined with the tothisspecification in the presenceof twosub- :0 truss taking its bearing upon and made movascribing witnesses.ble with relation to the exterior of the said 5 bearing-shell, combinedwith annular packing JAMES EATON inserted between the shoulders of thesaid Witnesses: bearing-shell and the recessed end of the truss, J AS.H. CHURCHILL, to operate substantially as described. JOHN C. EDwARDs.

